	b	start
	b	.
	b	.
	b	.
	b	.
	b	.
	b	irq
	b	.
irq:
	subs	pc, lr, #4
start:
	mov	r0, #100
	ldr	r1, =0xfffe0008
	str	r0, [r1, #4]
	mov	r0, #1
	strb	r0, [r1]		@ enable timer countdown
	cpsie	i, #16
halt:
	nop
	b	halt
